Question

The perimeter of a triangle is 9 x square - 3 x 3 x + 1 and 2 of its sides areThe perimeter of a triangle is 9 x square - 3 x 3 x + 1 and 2 of its sides are 2 X square + 6 x minus 4 and 9 x square - 11 + 1 find the third side

Answer 1

Answer:

THE THIRD SIDE, side c = 17-15x-2x².

Step-by-step explanation:

let the triangle be TRIANGLE ABC

THEREFORE, perimeter given=9x²-3(3x+1)= 9x²-9x+3

given, two sides of the triangle are

1. 2x²+6x-4, and ( let this side be side a )
2. 9x²-11+1 = 9x²-10 ( let this side be side b )
3. let the remaining side be side c.

a+b = 2x²+6x-4 + 9x²-10 = 11x²+6x-14

perimeter of triangle = sum of all sides

therefore, c = 9x²-9x+3-( 11x²+6x-14)

c = 9x²-11x²-9x-6x+3+14

c = -2x²-15x+17

c = 17-15x-2x².